Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004
Standing stocks and production rates for phytoplankton and heterotrophic bacteria were examined during four expeditions in the western Arctic Ocean (Chukchi Sea and Canada Basin) in the spring and summer of 2002 and 2004. Rates of primary production (PP) and bacterial production (BP) were higher in...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.811997 2023-05-15T14:27:07+02:00 Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 Kirchman, David L Hill, Victoria Cottrell, Matthew T Gradinger, Rolf Malmstrom, Rex R Parker, Alexander E MEDIAN LATITUDE: 71.805727 * MEDIAN LONGITUDE: -158.059471 * SOUTH-BOUND LATITUDE: 69.956000 * WEST-BOUND LONGITUDE: -164.390000 * NORTH-BOUND LATITUDE: 73.480000 * EAST-BOUND LONGITUDE: -151.844000 * DATE/TIME START: 2002-05-05T00:00:00 * DATE/TIME END: 2004-08-19T14:37:00 2009-05-23 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.811997 https://doi.org/10.1594/PANGAEA.811997 en eng PANGAEA SBI Data Archive (URI: https://archive.eol.ucar.edu/projects/sbi/) https://doi.pangaea.de/10.1594/PANGAEA.811997 https://doi.org/10.1594/PANGAEA.811997 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kirchman, David L; Hill, Victoria; Cottrell, Matthew T; Gradinger, Rolf; Malmstrom, Rex R; Parker, Alexander E (2009): Standing stocks, production, and respiration of phytoplankton and heterotrophic bacteria in the western Arctic Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 56(17), 1237-1248, https://doi.org/10.1016/j.dsr2.2008.10.018 International Polar Year (2007-2008) IPY Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.811997 https://doi.org/10.1016/j.dsr2.2008.10.018 2023-01-20T07:33:00Z Standing stocks and production rates for phytoplankton and heterotrophic bacteria were examined during four expeditions in the western Arctic Ocean (Chukchi Sea and Canada Basin) in the spring and summer of 2002 and 2004. Rates of primary production (PP) and bacterial production (BP) were higher in the summer than in spring and in shelf waters than in the basin. Most surprisingly, PP was 3-fold higher in 2004 than in 2002; ice-corrected rates were 1581 and 458 mg C/m**2/d respectively, for the entire region. The difference between years was mainly due to low ice coverage in the summer of 2004. The spatial and temporal variation in PP led to comparable variation in BP. Although temperature explained as much variability in BP as did PP or phytoplankton biomass, there was no relationship between temperature and bacterial growth rates above about 0°C. The average ratio of BP to PP was 0.06 and 0.79 when ice-corrected PP rates were greater than and less than 100 mg C/m**2/d, respectively; the overall average was 0.34. Bacteria accounted for a highly variable fraction of total respiration, from 3% to over 60% with a mean of 25%. Likewise, the fraction of PP consumed by bacterial respiration, when calculated from growth efficiency (average of 6.9%) and BP estimates, varied greatly over time and space (7% to >500%). The apparent uncoupling between respiration and PP has several implications for carbon export and storage in the western Arctic Ocean. Dataset Arctic Arctic Arctic Ocean canada basin Chukchi Chukchi Sea International Polar Year IPY Phytoplankton PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Chukchi Sea Canada ENVELOPE(-164.390000,-151.844000,73.480000,69.956000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Kirchman, David L Hill, Victoria Cottrell, Matthew T Gradinger, Rolf Malmstrom, Rex R Parker, Alexander E Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
Standing stocks and production rates for phytoplankton and heterotrophic bacteria were examined during four expeditions in the western Arctic Ocean (Chukchi Sea and Canada Basin) in the spring and summer of 2002 and 2004. Rates of primary production (PP) and bacterial production (BP) were higher in the summer than in spring and in shelf waters than in the basin. Most surprisingly, PP was 3-fold higher in 2004 than in 2002; ice-corrected rates were 1581 and 458 mg C/m**2/d respectively, for the entire region. The difference between years was mainly due to low ice coverage in the summer of 2004. The spatial and temporal variation in PP led to comparable variation in BP. Although temperature explained as much variability in BP as did PP or phytoplankton biomass, there was no relationship between temperature and bacterial growth rates above about 0°C. The average ratio of BP to PP was 0.06 and 0.79 when ice-corrected PP rates were greater than and less than 100 mg C/m**2/d, respectively; the overall average was 0.34. Bacteria accounted for a highly variable fraction of total respiration, from 3% to over 60% with a mean of 25%. Likewise, the fraction of PP consumed by bacterial respiration, when calculated from growth efficiency (average of 6.9%) and BP estimates, varied greatly over time and space (7% to >500%). The apparent uncoupling between respiration and PP has several implications for carbon export and storage in the western Arctic Ocean. |
format |
Dataset |
author |
Kirchman, David L Hill, Victoria Cottrell, Matthew T Gradinger, Rolf Malmstrom, Rex R Parker, Alexander E |
author_facet |
Kirchman, David L Hill, Victoria Cottrell, Matthew T Gradinger, Rolf Malmstrom, Rex R Parker, Alexander E |
author_sort |
Kirchman, David L |
title |
Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
title_short |
Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
title_full |
Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
title_fullStr |
Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
title_full_unstemmed |
Average nutrient concentration, and growth characteristics of bacteria during USCGC Healy cruises in 2002 and 2004 |
title_sort |
average nutrient concentration, and growth characteristics of bacteria during uscgc healy cruises in 2002 and 2004 |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.811997 https://doi.org/10.1594/PANGAEA.811997 |
op_coverage |
MEDIAN LATITUDE: 71.805727 * MEDIAN LONGITUDE: -158.059471 * SOUTH-BOUND LATITUDE: 69.956000 * WEST-BOUND LONGITUDE: -164.390000 * NORTH-BOUND LATITUDE: 73.480000 * EAST-BOUND LONGITUDE: -151.844000 * DATE/TIME START: 2002-05-05T00:00:00 * DATE/TIME END: 2004-08-19T14:37:00 |
long_lat |
ENVELOPE(-164.390000,-151.844000,73.480000,69.956000) |
geographic |
Arctic Arctic Ocean Chukchi Sea Canada |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea Canada |
genre |
Arctic Arctic Arctic Ocean canada basin Chukchi Chukchi Sea International Polar Year IPY Phytoplankton |
genre_facet |
Arctic Arctic Arctic Ocean canada basin Chukchi Chukchi Sea International Polar Year IPY Phytoplankton |
op_source |
Supplement to: Kirchman, David L; Hill, Victoria; Cottrell, Matthew T; Gradinger, Rolf; Malmstrom, Rex R; Parker, Alexander E (2009): Standing stocks, production, and respiration of phytoplankton and heterotrophic bacteria in the western Arctic Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 56(17), 1237-1248, https://doi.org/10.1016/j.dsr2.2008.10.018 |
op_relation |
SBI Data Archive (URI: https://archive.eol.ucar.edu/projects/sbi/) https://doi.pangaea.de/10.1594/PANGAEA.811997 https://doi.org/10.1594/PANGAEA.811997 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.811997 https://doi.org/10.1016/j.dsr2.2008.10.018 |
_version_ |
1766300695051370496 |